/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package sonth.CL;

import sonth.EL.User;
import sonth.BLL.UserService;
import sonth.EL.Product;
import sonth.BLL.ProductService;
import java.util.List;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Administrator
 */
public class LoginServlet extends HttpServlet implements IPageMapping {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {

        String action = request.getParameter("action");
        if (action.equalsIgnoreCase("checkLogin")) {
            String email = request.getParameter("txtEmail");
            String password = request.getParameter("txtPassword");
            User user = UserService.getByEmailAndPassword(email, password);
            if (user != null) {
                HttpSession session = request.getSession(true);
                session.setAttribute("user", user);
                List<Product> products = ProductService.getAll();
                request.setAttribute("products", products);
                request.getRequestDispatcher(VIEW_LIST_PRODUCT)
                        .forward(request, response);
            } else {
                response.sendRedirect(VIEW_LOGIN_FAIL);
            }
        } else if (action.equalsIgnoreCase("formLogin")) {
            response.sendRedirect(FORM_LOGIN);
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
